Epsilon-12Ged Layer 2 is a manag2+ Ethernet switch module offering twelve 10/100/1000Mbps copper twisted pair ports and two small form factor pluggable (SFP) sockets in the compact COM Express form factor. Epsilon-12G2 is designed for rugged applications including industrial, on-vehicle and military.



  • 12 Gigabit Ethernet ports with non-blocking wire-speed performance
  • 1 1G SFP socket; 1 2.5G SFP socket
  • Built-in 416MHz MIPS 24KEC microcontroller for configuration and management
  • RS-232 serial port provides out-of-band management interface
  • Can operate autonomously or in conjunction with a host SBC
  • 8K MAC addresses and 4K VLANs (IEEE 802.1Q), as well as 8K IPv4 and IPv6 multicast group support
  • Jumbo frame support at all speeds
  • Dual leaky bucket policers with remarking and statistics
  • Flexible link aggregation support based on Layer-2 through Layer-4 information (IEEE 802.3ad)
  • Multicast and broadcast storm control, as well as flooding control
  • Rapid Spanning Tree protocol (RSTP) and MSTP
  • 8 priorities and 8 QoS queues per port with scheduling
  • Shaping/policing per queue and per port
  • Multiple protocol support: IEEE 802.1d, IEEE 802.1w, IEEE 802.1s, and IEEE 802.1X
  • Wide input voltage range: +5-40VDC
  • Latching connectors for improved ruggedness
  • COM Express form factor module
  • (95 x 125mm)
  • Extremely rugged -40ºC to +85ºC operating temperature



A Product By Diamond Systems



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